<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>

<head>
<title>Windows Interface Reference: DragDrop structure</title>
</head>

<body>

<h1>DragDrop </h1>

<p>The DragDrop structure provides functions to allow file names to be dragged and dropped
onto a window. Calling DragAcceptFiles for a window allows it to accept dropped files.
&nbsp; It will then receive a WM_DROPFILES message containing a drop handle when one or
more files are dropped on the window.&nbsp; The file names are retrieved from the drop
handle using DragQueryFile and the position within the window with DragQueryPoint.
&nbsp; To complete processing the message call DragFinish.</p>

<pre>structure DragDrop:
  sig
    type HDROP
    type HWND (* = Window.HWND *)
    type POINT = { x: int, y: int }
    val DragAcceptFiles : HWND * bool -&gt; unit
    val DragFinish : HDROP -&gt; unit
    val DragQueryFile : HDROP -&gt; string list
    val DragQueryPoint : HDROP -&gt; POINT * bool
  end</pre>
</body>
</html>
